Realization of a single-Cooper-pair Josephson laser

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Chen, Fei, Li, Juliang, Armour, A.D., Brahimi, E., Stettenheim, Joel, Sirois, A.J., Simmonds, R.W., Blencowe, M.P. and Rimberg, A.J. (2014) Realization of a single-Cooper-pair Josephson laser. Physical Review B, 90 . 020506/1-020506/6. ISSN 2469-9969

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Abstract

We have embedded a voltage-biased Cooper-pair transistor (CPT) in a high-Q superconducting microwave cavity. When the energy given to a tunneling Cooper pair by the voltage bias is equal to a multiple of the cavity photon frequency, the cavity is pumped to a strongly nonequilibrium state. The cavity photons act back on the CPT, allowing us to enter a regime of strongly correlated electronic-photonic transport. We directly observe the effects of photonic backaction on Cooper-pair transport, and see clear evidence for single-emitter lasing in the form of emission dominated by stimulated transport processes.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/732068
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number: https://doi.org/10.1103/PhysRevB.90.020506
Depositing User: Armour, Andrew
Date Deposited: 13 Jul 2016 08:55
Last Modified: 04 May 2020 16:50
URI: https://eprints.nottingham.ac.uk/id/eprint/34874

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